John F. Herrity, chairman of the Fairfax County Board of Supervisors, has raised and spent more money in his race for the Republican nomination to the U.S. House of Representatives in Virginia's 8th Congressional District than his two opponents combined, according to reports filed yesterday.

The nominee will be elected in a June 13 party primary. Herrity's opponents are state Dels. Robert L. Thoburn and Robert E. Harris, both of Fairfax.

Herrity listed campaign contributions of $25,755 and expenditures of $24,888 in his report filed with the State Board of Elections.

Thoburn listed receipt of $7,937 and expenditures of $7,172 Thoburn's campaign has been financed entirely by loans and in-kind contributions of office space and equipment by the candidate, except for a political survey valued at $1,400 that was provided to all three candidates by the National Republican Congressional Committee.

A letter attached to the Thoburn report disclosed that he has lent another $8,500 to his campaign since the end of the preprimary period covered by the financial disclosure.

Harris has loaned $3,747 of his own of $7,647 and expenditures of $7,346. Harris has loans $3,747 of his own money to the campaign, the report said.